why the sample need dilution
When diluted water is added in surface wastewater to take immediate BOD is called unseeded and after 5 days of period wastewater received saturated oxygen from diluted water is called now seeded BOD.
For PCR, you will need DNA sample, primers, nucleotides, DNA polymerase, buffer solution, and a thermal cycler.
A blood test may need to be retaken if the sample was compromised or hemolyzed during collection, if an error occurred in processing the sample, if the results were inconclusive or questionable, or if the healthcare provider suspects a potential issue with the initial test.
Sample, example.
No, isolated colonies of bacteria may not always be in the fourth sector on the streak plate. The placement of isolated colonies can vary depending on factors such as the distribution of bacteria on the plate and the streaking technique used.
no i have personally done this every time i have taken a test and passed. but you can get in trouble for having a diluted sample.
If you deliver a diluted sample, they'll flunk you just for the dilution.
sometimes!
A diluted urine drug test is one where the sample was diluted. It happens in two ways--you drank too much water to make yourself pee (DOT's standard says drink no more than 40 ounces of water), or you put water in your sample after you peed it out.A negative diluted test says "no drugs in this sample passed the test thresholds, but it was diluted so there MIGHT be drugs in here." Basically, a diluted negative is a test failure.
Nope!
It really depends on the amount of cocaine that was taken, and the strength of the test. If a lab test probably caught.
only if you are stupid enought to do that and risk jail
(0.102gx1mole)/99g CuCl = 1.031x10^-3 moles
No. It depends on the number of bacteria present in the initial sample. If the number of bacteria in the initial sample are limited, you may get isolated colonies in the first streak. If the number of bacteria in the sample are high, it may take several streaks before the sample is diluted to the point where isolated colonies are evident.
Get a lawyer. There is no way to determine in standard practices whether a sample is diluted or not. A full laboratory spectral analysis of the sample would need to be conducted, and this is neither cost effective nor judicially prudent without probable cause. Not to mention with current federal lab delays, it would take months for him to obtain the results.
if unseeded, BOD = (D1-D2)/Pif seeded, BOD = ((D1-D2)-(B1-B2)f)/PD1 = DO of diluted seeded wastewaterD2 = DO of wastewater after incubationB1 = DO of diluted seed sampleB2 = DO of seed sample after incubationf = ratio of seed volume in seeded wastewater test to seed volume in BOD test on seedP = decimal fraction of wastewater sample used. (vol. of wastewater)/(vol. of dilution water plus wastewater)Maybe that helps
it is need so as a control.